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Finding the Fourth Proportional to 66,270.21, 91,479.54 and 45,062.38

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Solution

The fourth proportional to 66,270.21, 91,479.54 and 45,062.38 is: 62,204.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,270.21 : 91,479.54 = 45,062.38 : x
  2. Step 2: Convert to fraction form
    66,270.21/91,479.54 = 45,062.38/x
  3. Step 3: Cross multiply
    66,270.21x = 91,479.54 × 45,062.38
  4. Step 4: Simplify right side
    66,270.21x = 4,122,285,793.71
  5. Step 5: Solve for x
    x = 4,122,285,793.71/66,270.21
  6. Step 6: Final answer
    x = 62,204.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.